Pump piston



A. A. BARTON. v

`F'uMP Pls'roN. .FILE APR. 6. 1 922.

Jan. 9, 1923.

flu

FII m 47' Top N5 Ys.

' /M/E/vre: #PCH/Lasf BA1/PTOM,

narran raraur g.WillsE anonrnrins n; in an'ron, or Los ANGELES, .ca rrroaivra.

` ruime rrsrouf f `apen@andi flied A'p'rn 1922. serial No. 550,068.

ToaZZ 10V/720m t may concern Be l it ,known that l, Anci-nenas 'ron va at lios Angeles, ink the county of Los Angeles, yqtate'of California, havefinvented A. Balnra new and useful. improvement in `liump Pistons, of which the following is a specification. ,i 1 y 'y My invention relates to pumps andinore particularly to pistons used in suchpumps. `it is particularly applicable to adeep well pump of the duplex ory triplex variety. The

. term Cleepavell pump as used by me denotes a pump having a pumpl barrel which is carried at theend of a which is submerged in the water ofthe well at some distance below the surface. rlhe terms duplexr7 and triplex asy used by me denote pumps inwhich two or more pistons are used, one working l vertically above the other, all being operated by a single pump head located above the surface of the well.

`While my invention is particularly applicable to duplex and triplex .deep well pumps, and while it has a special utility and noveltywhen so applied, nevertheless l. do not Wish to be understood as restricting myself to` such an application of my invention which should be limited only by i the annexed claims.

An object of my invention is to provide a piston of this character which will have a very large opening therethrough, ythuscutting down the water. frictions through the buckets and valves and increasing the efficiency.` f

A further object of my invention is to provide a valve for use in such a piston which will have a single closing surface and which will be flexibly guided so that it makes a tight closure with that surface at all times.

A still further object of my invention is to provide a valve having a packed central openin and kto provide means for preventing un ue wear on the vpacking about said central opening.

Further objects and advantages will be made evidenthereinafter. e y

Referring to the drawing, which is for illustrative purposes only,

one embodimentof my invention.

`citizen ofthe UnitedStates, 'residing string of pipe` and pump rod pose in that they tend to guide the Fig. 2 is an enlarged central section through the valve used in my'invention.

Fig.3 isa section on a plane indicated e by the lline 3 3 of Fig. 1, and

Fig; 4 'is a. section 'on a plane indicated by `the line 4-4of Fig. 1.

In the Vform of the yinvention illustrated a -single lbucket is shown, this bucket operating inside the pump barrelll and consist-` ing of abody 12 carried by three arms 13 from aL -hub 14. y krlhe body carries cup leathers 15 which are heldin placel by spacers y' 16,: members 15 and 16 being clamped solidly by a nut 17. The hub 14 is threaded at 1S to receive thelower end of apump rod 20, tris pump rod consisting of a hollow tube'which extends upwardly to the top of the well and is' operatedbya pump head,.not shown. lPassing through a central opening 21 ,in the hub 18 is a second l 22 which may, be a hollow pipe or a solid rod as shown. This pump rod 22 extends downwardly inside the pump barrel 11 and is connected to the-next lower bucket of the pump which is not shown. The pump rods 20 and 22 are so reciprocated that one of them is moving kupwardly at certain times when the other is moving downwardly, this being necessary to provide a continuous flow of water, one of the buckets lifting when the other bucket is falling. The bucket 11 is provided with a central passage 25 which terminates at its top in a valve seat 26. The valve seat 26 is preferably conical or spherical in contour and it is closed by a vvalve 30 which has a Surface 31 machined. to vfit accurately" against the seat 26.

For the purpose of guiding the bucket, l provide a short tube wl'uch is secured in the hub 14 by threads The tube 35 exclamped in placeby means of a nut 43. rllhe cup leathers 4G' and 41 serve two purposes; in the first place, they make a tight closure around the member 35, thus preventing water from passing downwardly around the member 35 when the valve 30 is seated; they also serve another highly important pur.

valve 30 in a straight line so that 1t makes a tight y closure all around on the seat 26, this closure,

however, being :t flexible one so that the 'veive 3G has :L goed opportunity to tind its own seat and to adjust itself laterally to provide u, perfect sost tt all times.

llor the purpose ot assisting in u rapid closing end secure seating' of the vulve, l provide 1r compression spring 50 which presses against u coller 5l formed on the hub 141: and is seated against e shoulder in the valve 50. Since the member` 35 is secured in the hub les, it moves ,with the hub end the only movement between it and the vulve 30 is that due to the lifting and seating of the valve on the seat 26. The pump rod 22 lits looseluv7 in the member 85 Which is preferably formed of brass orrbronze end since this tit is e loose one, there weer on the rod 22 or on themember claim as my invention: A

l. n e, pump, the combination ot: fr bucket having e central `passege therethrough; e pump rod extending through said passage for the purpose or operating u' lower bucket in seid pump; a hub above sei-d passage, seid hub having e central hole through which seid pump rody extends; e valve seating in said passage, seid 'valve also having :i central orice through which seid pump rod also extends g` i1-tuber secured in 'wutor tight relation in sind central hole in seid hub und rif-:tending iimvuwerdly trom veryv little seid hub, said pump rod extending through the center of said tube which extends through the central orifice of seid valve; packing ineens making e tight closure in oriticeebout seid tube; and menus connecting seid bucket with said hub.

` 2. In it pump, the combin-ition of: u bucket having :t centraal passage therethrough; e pump rod extending througl'i seid passage for the purpose ot' operating e lower bucket in said pump; e hub above seid passage, seid hub having a central `hole through which said 'pump rod extends; a valve seeting'in said passage, said valve also having e centra-l orifice throughxwhich seid pump rod also extends; e compression spring between seid hub` and seid valve so disposed that it tends to seet said valve in seid 'central passage; a, tube secured in Water tight relation in said central hole in seid hub and extending douffniverdly from seid hub, said pump rodextending through the center yot' seid tube which extends through the central orifice of said valve, pecking ineens making e tight closure in said central orifice about said tube; and means conneeting said bucket with said hub.

in testim ny whereof, l lieve hereunto set my hund it Los Angeles, Californie, this 29th dug' ot Merch, 1922.

seid centraal 

